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duplex thermowells
Variety and index
Tech-data | Test conditions | Unit | 75%AL2O3 | 90%AL2O3 | 95%AL2O3 | 99%AL2O3 | 99.5%AL2O3 |
Density |
| g/cm3 | >3.20 | >3.40 | >3.60 | 3.7 | 3.7 |
Bending strength |
| N/m3 | 1.96×108 | 2.25×108 | 2.24×108 | >2.24×108 | >2.74×108 |
linear expansibility | 20~1000C | ×10-6/0C | 6 | - | - | - | - |
20~5000C | ×10-6/0C | - | 6.3~7.3 | 6.2~7.5 | 6.2~7.5 | 6.2~7.5 | |
20~8000C | ×10-6/0C | - | 6.3~7.3 | 6.5~8.0 | 6.5~8.0 | 6.5~8.0 | |
specific inductive capacity | 1MH2 |
| ≤9 | 8.5~9.5 | 9~10 | 9~10.5 | 9~10.5 |
10GMH2 |
| - | - | 9~10 | 9~10.5 | - | |
Dielectric loss value | 1MH2 | ×10-6 | ≤10 | ≤8 | ≤ 4 | ≤2.5 | ≤1.5 |
Tangent | 10GMH2 | ×10-6 | - | - | ≤10 | ≤6 | - |
Volume resistance | 1000C | Ω·cm | >1012 | >1013 | >1013 | >1013 | >1014 |
3000C | Ω·cm | - | >1015 | >1016 | >1016 | >1012 | |
5000C | Ω·cm | - | - | 108 | 109 | - | |
Breakdown Strength |
| KV/mm | 20 | 15 | 15 | 15 | - |
Thermal conductivity | 200C | W/m·K | - | 16.8 | 25.2 | 25.2 | 29.2 |
Max Temp Resistance
50% Al2O3 | 110°C |
75% Al2O3 | 125°C |
85% Al2O3 | 1400°C |
95% Al2O3 | 1500°C |
99% Al2O3 | 1600-1800°C |
Common size
4*6.5*0.7*700 | 10*6*1250 | 15 X 11 X 1000MM |
4*6.5*0.7*750 | 10*7*400 | 15 X 11 X 500MM |
5X 0,7 X 1000MM (4 FUROS) | 10*7*500MM | 15 X 11 X 700MM |
5*0.7*700MM(4 FUROS) | 10*7*600 | 15*10*1100 |
6 X 4 X 700MM | 10*7*650 | 15*10*1000 |
7*5*1000 | 10 *7 *700 | 17*13*1125 |
8*5*650 | 10*7*1030 | 18*12*1100 |
8*5*800mm | 12*8*1000 | 20*10*1200 |
10*6*800 | 12*8*800 | 20*10*1200 |
10*6*1000 | 13*9*1000 | ………….. |
Any other size are availabe, pls enquiry for the details.
Packaging & Delivery
Contact us if you need more details on Duplex Thermowells. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Thermocouple Protection Tube/duplex Thermowells、Duplex Thermowells. If these products fail to match your need, please contact us and we would like to provide relevant information. Product Categories : Thermcouple Tube
